Reply With QuoteThis has always concerned me. I've lost count of the number of web photos I've seen of 4 links with heim joints everywhere.Originally Posted by Bush65
To articulate they're relying on the mounts flexing or the rear axle tube twisting.
YarnMaster
The most acceptable 3 link plus panhard front suspension set-up uses 2 lower links and a single upper link.
The difficulty with this is upper link clearance from the engine - usually requiring the upper link to be offset. If the offset is not extreme and is on the correct side (which side depends on the angle and counteracting torque roll), this set-up can work well (providing link geometry is acceptable).
The Safari-guard 3 link has 1 lower link on the centreline and 2 upper links. The main advantage it has is that it is a bolt-on system. The prototype received bad press due to structural failure, which was rectified.
Although the Safari-guard is a tested system, I would not use it on a tourer.
An anti-roll/sway bar can fix the body roll issues, but it is the behaviour during crash stops that I have concerns with.
If designed for good anti-dive characteristics, a 4 link plus panhard front suspension suffers from binding like radius arms, and for the same reason (the system is over constrained). They rely on flex in the bushings when the axle articulates, but having more bushings allows more flex.
ForumSage
This has always concerned me. I've lost count of the number of web photos I've seen of 4 links with heim joints everywhere.
To articulate they're relying on the mounts flexing or the rear axle tube twisting.
OldBushie
Is there any chance of a diagram,photo so the rest of us know what you are taking about?. Pat
Wizard
good call Pat, lost me with the 4 link, 3 link, 2 link, heim joints (is that like the leafy type joint) uppers and downers...oops sorry thats upper and lower links
can some put that in laymans terms...ta
Swaggie
You mean a photo of the 3-link?
TopicToaster
or did you want a pic of a MTB??You mean a photo of the 3-link?
cheers phil
TopicToaster
or did you want a pic of a MTB??You mean a photo of the 3-link?
cheers phil
Swaggie
Come on Phil, at least post a pic of a Decent bike
Sorry for the hijack!
Your provent is in the post.
Btw - that crappy bike you posted now has me thinking how horrible URT suspension designs are to ride... About as bad as a "one link" (grader ball etc.) suspension on a 4x4 would be.
OldBushie
That doesn't look like a motor torpedo boat!!!.So what is the advantage of the 3 link setup?.It just looks like over-engineering to me and the lower link would limit axle movement unless it was able to twist with it.I think spherical bushes in the radius arms would be a better thing. Pator did you want a pic of a MTB??
cheers phil
ForumSage
You've just posted a bike with the worst suspension design ever.or did you want a pic of a MTB??
cheers phil
Here's a better one.
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